Plugins didn't match lib/plugin.php onPluginVersion function definition

I ran:
for i in `grep -R onPluginVersion...version plugins/|cut -d: -f1`; do sed -i '{ s/\(onPluginVersion(\)\(\&\$versions\)/\1array \2/ }' $i; done

plugins/ForceGroup/ForceGroupPlugin.php

@@ -105,7 +105,7 @@ class ForceGroupPlugin extends Plugin
      *
      * @return boolean hook value
      */
-    function onPluginVersion(&$versions)
+    function onPluginVersion(array &$versions)
     {
         $url = 'http://status.net/wiki/Plugin:ForceGroup';